Sam Bateman is a Senior Fellow and Adviser to the Maritime Security Program at the S. Rajaratnam School of International Studies (RSIS) in Singapore, and Adjunct Professorial Research Fellow at the Australian National Centre for Ocean Resources and Security at the University of Wollongong. He retired from full-time service in the Royal Australian Navy with the rank of Commodore (one-star) in 1993. He has written extensively on defence and maritime issues in Australia, the Asia-Pacific and Indian Ocean, and was awarded his PhD from the University of NSW in 2001. Ralf Emmers is Associate Professor and Head of Graduate Studies at the S. Rajaratnam School of International Studies (RSIS), Nanyang Technological University (NTU), Singapore. His research interests are in security studies, international institutions in the Asia- Pacific, and the international relations of Southeast Asia. His publications include Cooperative Security and the Balance of Power in ASEAN and the ARF (2003) and Non-Traditional Security in the Asia-Pacific: The Dynamics of Securitization (2004). He is also the co-editor of Order and Security in Southeast Asia: Essays in Memory of Michael Leifer (2006) and Understanding Non-Traditional Security in Asia: Dilemmas in Securitization (2006).